Prefabricated box girder web steel bar spacing limiting frame

Abstract

The invention discloses a prefabricated box girder web steel bar spacing limiting frame which comprises a machine frame and further comprises an adjusting assembly, a steel bar spacing limiting assembly and a steel bar spacing limiting assembly. The positioning assembly is used for fixing steel bars; the adjusting assembly comprises a base, lifting plates, left-handed lead screws A, right-handed lead screws B, a sliding cylinder A, a sliding cylinder B and an ejector rod, the base is fixedly connected to the bottom of the rack, the multiple lifting plates are slidably connected into the rack, the multiple left-handed lead screws A are rotationally connected into the base and the lifting plates correspondingly, the other ends of the left-handed lead screws A are fixedly connected with the right-handed lead screws B, and the other ends of the right-handed lead screws B are fixedly connected with the ejector rod. The left-handed screw rods A are rotatably connected to the base, the right-handed screw rods B are rotatably connected to the base and the lifting plate respectively, the sliding cylinders A are in threaded connection to the left-handed screw rods A, the sliding cylinders B are in threaded connection to the right-handed screw rods B, ejector rods are hinged between the sliding cylinders A and the sliding cylinders B, and the two ejector rods are rotatably connected at the intersection of the ejector rods. The device can quickly adjust the distance between the steel bars.

Description

Technical Field

[0001] The invention belongs to the technical field of steel bar construction, and in particular relates to a prefabricated box girder web steel bar spacing limiting frame. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. The cross-section of the steel bar is round, sometimes square with rounded corners. Rebar processing generally goes through four processes: rust removal, straightening, cutting and forming. It is mainly used for various large, heavy, light thin-walled and high-rise building structures. It is divided into three types: plain round steel bars, ribbed steel bars and twisted steel bars. In order to improve its rigidity, it is often necessary to bundle or weld the steel bars together for use. At the same time, the steel bars are often placed on limit frames for connection, but this type of limit frame is not convenient for adjusting the spacing between the steel bars and is prone to deformation. A structure that is convenient for adjusting the spacing between the steel bars is now proposed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a prefabricated box girder web steel bar spacing limiting frame to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a prefabricated box girder web steel bar spacing limit frame, including a frame, and also including: an adjustment component for adjusting the steel bar spacing; a positioning component for fixing the steel bars; the adjustment component includes a base, a lifting plate, a left-handed screw rod A, a right-handed screw rod B, a slide cylinder A, a slide cylinder B and a top rod, the base is fixedly connected to the bottom of the frame, a plurality of the lifting plates are slidably connected in the frame, a plurality of the left-handed screw rods A are respectively rotatably connected in the base and the lifting plate, the other end of the left-handed screw rod A is fixedly connected to the right-handed screw rod B, a plurality of the right-handed screw rods B are respectively rotatably connected in the base and the lifting plate, the slide cylinder A is threadedly connected to the left-handed screw rod A, the slide cylinder B is threadedly connected to the right-handed screw rod B, a top rod is hinged between the slide cylinder A and the slide cylinder B, and the two top rods are rotatably connected at their intersection.

[0005] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0006] Further technical solution: The top of the frame is slidably connected with a slider A and a slider B, respectively, the slider A and the slider B are hinged to two top rods respectively, and the frame is connected to the push rod assembly.

[0007] Further technical solution: The positioning assembly includes a worm, a worm wheel, a left-handed screw B and a right-handed screw B. The multiple worms are respectively fixedly connected to the left-handed screw A and the right-handed screw B. The worm is meshingly connected to the worm wheel. The upper and lower sides of the worm wheel are respectively fixedly connected with the left-handed screw B and the right-handed screw B. The left-handed screw B and the right-handed screw B are rotatably connected in the base and the lifting plate.

[0008] Further technical solution: The left-handed screw rod B and the right-handed screw rod B are respectively threadedly connected with slip rings, the slip rings are slidably connected to the base and the lifting plate, the slip rings are respectively fixedly connected with connecting plates, and a plurality of arc plates are fixedly connected to the connecting plates.

[0009] Further technical solution: The push rod assembly includes a base plate, a push rod and an eccentric wheel. The two frames are slidably connected to the base plate, one end of the push rod is hinged to the frame, and the other end of the push rod is rotatably connected to the eccentric part of the eccentric wheel.

[0010] Further technical solution: a shaft is fixedly connected to the axis center of the eccentric wheel, the shaft is rotatably connected to the base plate, a pulley is fixedly connected to the shaft, the two pulleys cooperate with each other and are connected to the belt drive, and the shaft is fixedly connected to the output shaft of the motor.

[0011] Further technical solution: The feeding assembly includes a limit plate, a slide rod and a slide table. The limit plate is fixedly connected to the bottom plate, slide cylinders are slidably connected on both sides of the slide rod, the slide cylinders are slidably connected to the limit plate, and the slide table is slidably connected to the slide rod.

[0012] Further technical solution: the slide is threadedly connected to the screw rod, one end of the screw rod is rotatably connected to the slide rod, the other end of the screw rod is fixedly connected to the output shaft of the motor, and the motor is fixedly connected to the slide rod.

[0013] Further technical solution: A connecting rod is rotatably connected in the slide, a plurality of clamping rings are fixedly connected to the connecting rod, a gear is fixedly connected to the connecting rod, and the rack is slidably connected to the slide rod.

[0014] Beneficial Effects

[0015] The present invention provides a prefabricated box girder web steel bar spacing limit frame, which has the following beneficial effects compared with the prior art:

[0016] 1. The relevant technicians place the steel bars on multiple arc plates respectively, and start the motor connected to the right-hand screw B, so that the right-hand screw B drives the left-hand screw A fixedly connected to it to rotate synchronously, so that the slide cylinder A and the slide cylinder B threaded on the left-hand screw A and the right-hand screw B start to move linearly towards each other, so that the slide cylinder A and the slide cylinder B drive the mandrel hinged to them to move synchronously, so that the distance between the two ends of the two mandrels is reduced, and the lifting plate starts to slide along the connection between it and the frame, so as to adjust the distance between the steel bars placed on the arc plate to prevent the steel bars from being misplaced during installation. At the same time, when the left-hand screw A When the right-hand screw B rotates, the worm fixedly connected thereto rotates synchronously, so that the worm drives the worm wheel meshing with it to start rotating, so that the worm wheel drives the left-hand screw B and the right-hand screw B fixedly connected thereto to start rotating synchronously, so that the slip rings threadedly connected on the left-hand screw B and the right-hand screw B start to move linearly toward each other, so that the slip ring drives the connecting plate fixedly connected thereto to move synchronously, so that the connecting plate drives the arc plate fixedly connected thereto to start to move linearly toward each other, so that the two arc plates cooperate with each other to clamp and position the steel bars, and prevent the steel bars from slipping off the arc plates;

[0017] 2. When the length of the steel bar is short, the relevant technician starts the motor connected to the shaft, so that the shaft drives the pulley fixedly connected thereon to start rotating synchronously, so that the two pulleys start rotating synchronously with the cooperation of the belt connected thereto, so that the two shafts start rotating synchronously, so that the eccentric wheel fixedly connected to the shaft starts rotating synchronously, and at this time, the push rod connected to the eccentric part of the eccentric wheel starts to move in a circle, so that the push rod pushes the frame articulated therewith, so that the two frames start to slide along the connection with the bottom plate, so as to adjust the spacing of the frames, so that the shorter steel bars can also be placed on the arc plate; after the spacing of the frames is adjusted, the steel bars are placed on multiple clamps. , and manually push the slide bar to make it move linearly along the limit plate, so that the slide is between the two arc plates. At this time, the relevant technicians start the motor and hold the rack tightly, so that the motor drives the screw rod fixedly connected to its output shaft to rotate synchronously, and the screw rod drives the slide connected to its thread to start sliding along the slide bar. At the same time, when the gear slides to the upper end of the rack, the gear starts to rotate with the cooperation of the rack, so that the gear drives the connecting rod fixedly connected at its axis to rotate synchronously, so that the connecting rod drives the clamping ring fixed on it to rotate synchronously, and the clamping ring is flipped 90°, and the steel bars placed on it are pushed onto the arc plate to facilitate the loading and stacking of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is an enlarged schematic diagram of the positioning structure of the present invention.

[0020] Figure 3 It is an enlarged schematic cross-section diagram of the transmission structure of the present invention.

[0021] Figure 4 It is an enlarged schematic diagram of the screw rod structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention.

[0023] Notes on figure marks: frame 101, adjustment component 2, positioning component 3, push rod assembly 4, feeding component 5, base 201, lifting plate 202, left-handed screw A203, right-handed screw B204, slide A205, slide B206, push rod 207, slider A208, slider B209, worm 301, worm wheel 302, left-handed screw B303, right-handed screw B304, slip ring 305, connecting plate 306, bottom plate 401, shaft 402, eccentric wheel 403, push rod 404, pulley 405, belt 406, limit plate 501, slide rod 502, slide table 503, screw rod 504, motor 505, connecting rod 506, retaining ring 507, gear 508, rack 509. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 5 , provided in one embodiment of the present invention, is a prefabricated box girder web reinforcement spacing limiting frame, comprising a frame 101, and further comprising:

[0027] Adjustment component 2, used for adjusting the spacing between steel bars;

[0028] A positioning component 3, used for fixing the steel bars;

[0029] The adjusting assembly 2 comprises a base 201, a lifting plate 202, a left-handed screw rod A203, a right-handed screw rod B204, a slide cylinder A205, a slide cylinder B206 and a push rod 207. The base 201 is fixedly connected to the bottom of the frame 101, and a plurality of lifting plates 202 are slidably connected in the frame 101. A plurality of left-handed screw rods A203 are rotatably connected in the base 201 and the lifting plate 202 respectively. The other end of the left-handed screw rod A203 is fixedly connected to the right-handed screw rod B204, and a plurality of right-handed screw rods B204 are rotatably connected in the base 201 and the lifting plate 202 respectively. The slide cylinder A205 is threadedly connected to the left-handed screw rod A203, and the slide cylinder B206 is threadedly connected to the right-handed screw rod B204. A push rod 207 is hinged between the slide cylinder A205 and the slide cylinder B206, and the two push rods 207 are rotatably connected at their intersection.

[0030] Specifically, a slider A208 and a slider B209 are slidably connected to the top of the frame 101 , respectively. The slider A208 and the slider B209 are hinged to two top rods 207 , respectively. The frame 101 is connected to the push rod assembly 4 .

[0031] Specifically, the positioning assembly 3 includes a worm 301, a worm wheel 302, a left-handed screw B303 and a right-handed screw B304. The multiple worms 301 are respectively fixedly connected to the left-handed screw A203 and the right-handed screw B204. The worm 301 is meshingly connected with the worm wheel 302. The upper and lower sides of the worm wheel 302 are respectively fixedly connected with the left-handed screw B303 and the right-handed screw B304. The left-handed screw B303 and the right-handed screw B304 are rotatably connected in the base 201 and the lifting plate 202.

[0032] Specifically, the left-handed screw rod B303 and the right-handed screw rod B304 are respectively threadedly connected with slip rings 305, and the slip rings 305 are slidably connected to the base 201 and the lifting plate 202. The slip rings 305 are respectively fixedly connected with connecting plates 306, and the connecting plates 306 are fixedly connected with multiple arc plates 307.

[0033] In the embodiment of the present invention, the relevant technicians place the steel bars on a plurality of arc plates 307 respectively, and start the motor connected to the right-hand screw rod B204, so that the right-hand screw rod B204 drives the left-hand screw rod A203 fixedly connected thereto to rotate synchronously, so that the slide cylinder A205 and the slide cylinder B206 threadedly connected to the left-hand screw rod A203 and the right-hand screw rod B204 start to move linearly toward each other, so that the slide cylinder A205 and the slide cylinder B206 drive the top rod 207 hinged thereto to move synchronously, so that the distance between the two ends of the two top rods 207 is reduced, and the lifting plate 202 starts to slide along the connection between it and the frame 101, so as to adjust the distance between the steel bars placed on the arc plates 307 to prevent the steel bars from being misplaced during installation. At the same time, when the left-hand screw rod A205 and the slide cylinder B206 are threadedly connected thereto, the lifting plate 202 starts to slide along the connection between it and the frame 101, so as to adjust the distance between the steel bars placed on the arc plates 307 to prevent the steel bars from being misplaced during installation. When the right-hand screw B203 and the right-hand screw B204 rotate, the worm 301 fixedly connected thereto rotates synchronously, so that the worm 301 drives the worm wheel 302 meshing with it to start rotating, so that the worm wheel 302 drives the left-hand screw B303 and the right-hand screw B304 fixedly connected thereto to start rotating synchronously, so that the slip ring 305 threadedly connected on the left-hand screw B303 and the right-hand screw B304 starts to move linearly toward each other, so that the slip ring 305 drives the connecting plate 306 fixedly connected thereto to move synchronously, so that the connecting plate 306 drives the arc plate 307 fixedly connected thereto to start to move linearly toward each other, so that the two arc plates 307 cooperate with each other to clamp and position the steel bars, thereby preventing the steel bars from slipping off the arc plates 307.

[0034] Specifically, the push rod assembly 4 includes a base plate 401, a push rod 404 and an eccentric wheel 403. The two frames 101 are slidably connected to the base plate 401. One end of the push rod 404 is hinged to the frame 101, and the other end of the push rod 404 is rotatably connected to the eccentric position of the eccentric wheel 403.

[0035] Specifically, the eccentric wheel 403 is fixedly connected to a shaft 402 at its axis, the shaft 402 is rotatably connected to the base plate 401, a pulley 405 is fixedly connected to the shaft 402, the two pulleys 405 cooperate with each other and are transmission-connected to a belt 406, and the shaft 402 is fixedly connected to the output shaft of the motor.

[0036] Specifically, the feeding assembly 5 includes a limit plate 501, a slide rod 502 and a slide table 503. The limit plate 501 is fixedly connected to the bottom plate 401. The slide rod 502 is slidably connected to slide cylinders on both sides. The slide cylinders are slidably connected to the limit plate 501. The slide table 503 is slidably connected to the slide rod 502.

[0037] Specifically, the slide 503 is threadedly connected to the screw rod 504 , one end of the screw rod 504 is rotatably connected to the slide bar 502 , the other end of the screw rod 504 is fixedly connected to the output shaft of the motor 505 , and the motor 505 is fixedly connected to the slide bar 502 .

[0038] Specifically, a connecting rod 506 is rotatably connected to the slide 503 , a plurality of snap rings 507 are fixedly connected to the connecting rod 506 , a gear 508 is fixedly connected to the connecting rod 506 , and the rack 509 is slidably connected to the slide rod 502 .

[0039] In the embodiment of the present invention, when the length of the steel bar is shorter, the relevant technicians start the motor connected to the shaft 402, so that the shaft 402 drives the pulley 405 fixedly connected thereto to start to rotate synchronously, so that the two pulleys 405 start to rotate synchronously with the cooperation of the belt 406 connected thereto, so that the two shafts 402 start to rotate synchronously, so that the eccentric wheel 403 fixedly connected to the shaft 402 starts to rotate synchronously, and at this time, the push rod 404 connected to the eccentric part of the eccentric wheel 403 starts to perform circular motion, so that the push rod 404 pushes the frame 101 hinged thereto, so that the two frames 101 start to slide along the connection between them and the bottom plate 401, so as to adjust the spacing between the frames 101, so that the shorter steel bars can also be placed on the arc plate 307; after the spacing between the frames 101 is adjusted, the steel bars are placed on multiple clamping rings 507, The slide bar 502 is manually pushed to make it move linearly along the limit plate 501, so that the slide 503 is between the two arc plates 307. At this time, the relevant technicians start the motor 505 and hold the rack 509 tightly, so that the motor 505 drives the screw rod 504 fixedly connected to its output shaft to rotate synchronously, and the screw rod 504 drives the slide 503 threadedly connected to it to start sliding along the slide bar 502. At the same time, when the gear 508 slides to the upper end of the rack 509, the gear 508 starts to rotate with the cooperation of the rack 509, so that the gear 508 drives the connecting rod 506 fixedly connected at its axis to rotate synchronously, so that the connecting rod 506 drives the retaining ring 507 fixedly connected thereto to rotate synchronously, and the retaining ring 507 is flipped 90 degrees, and the steel bars placed on it are pushed to the arc plate 307, so as to facilitate the loading and stacking of the steel bars.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] The fixed connection referred to in this application refers to a connection in which a part or component is fixed without any relative movement, which can be divided into detachable connection and non-detachable connection.

[0042] (1) Removable connection: The parts are fixed together by screws, splines, wedge pins, etc. This connection method can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0043] (2) Non-detachable connection: mainly refers to welding, riveting and tenoning. Since forging, sawing or oxygen cutting are required for disassembly during maintenance or replacement, spare parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.) during connection.

[0044] The sliding connection referred to in the present application means that the component can slide along a linear trajectory, and the hinged connection referred to in the present application means that the component can rotate along an axial constraint.

[0045] In some cases, the sliding connection and hinge referred to in the present application may also be damped so that the components have the ability to maintain a desired position.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated box girder web reinforcement spacing limit frame, comprising a frame (101), characterized in that: Also includes: An adjustment component (2) for adjusting the spacing between the steel bars; A positioning component (3) for fixing the steel bar; The adjusting assembly (2) comprises a base (201), a lifting plate (202), a left-hand screw rod A (203), a right-hand screw rod B (204), a slide cylinder A (205), a slide cylinder B (206) and a push rod (207), wherein the base (201) is fixedly connected to the bottom of the frame (101), a plurality of the lifting plates (202) are slidably connected in the frame (101), a plurality of the left-hand screw rods A (203) are rotatably connected in the base (201) and the lifting plate (202), and the left-hand screw rods A (203) are respectively rotatably connected in the base (201) and the lifting plate (202). The other end of (203) is fixedly connected to the right-hand screw rod B (204), and the plurality of right-hand screw rods B (204) are rotatably connected to the base (201) and the lifting plate (202), respectively. The slide A (205) is threadedly connected to the left-hand screw rod A (203), and the slide B (206) is threadedly connected to the right-hand screw rod B (204). A push rod (207) is hinged between the slide A (205) and the slide B (206), and the two push rods (207) are rotatably connected at their intersection.

2. The prefabricated box girder web reinforcement spacing limit frame according to claim 1 is characterized in that: The top of the frame (101) is slidably connected to a slider A (208) and a slider B (209), respectively. The slider A (208) and the slider B (209) are respectively hinged to two top rods (207), and the frame (101) is connected to a push rod assembly (4).

3. The prefabricated box girder web reinforcement spacing limit frame according to claim 1, characterized in that: The positioning assembly (3) comprises a worm (301), a worm wheel (302), a left-handed screw rod B (303) and a right-handed screw rod B (304); the plurality of worms (301) are respectively fixedly connected to the left-handed screw rod A (203) and the right-handed screw rod B (204); the worm (301) is meshingly connected with the worm wheel (302); the left-handed screw rod B (303) and the right-handed screw rod B (304) are respectively fixedly connected to the upper and lower sides of the worm wheel (302); the left-handed screw rod B (303) and the right-handed screw rod B (304) are rotatably connected to the base (201) and the lifting plate (202).

4. The prefabricated box girder web reinforcement spacing limit frame according to claim 3 is characterized in that: The left-handed screw rod B (303) and the right-handed screw rod B (304) are respectively threadedly connected with a slip ring (305), and the slip ring (305) is slidably connected to the base (201) and the lifting plate (202). The slip ring (305) is respectively fixedly connected with a connecting plate (306), and the connecting plate (306) is fixedly connected with a plurality of arc plates (307).

5. The prefabricated box girder web reinforcement spacing limit frame according to claim 2, characterized in that: The push rod assembly (4) comprises a base plate (401), a push rod (404) and an eccentric wheel (403); the two frames (101) are slidably connected to the base plate (401); one end of the push rod (404) is hinged to the frame (101); and the other end of the push rod (404) is rotatably connected to the eccentric position of the eccentric wheel (403).

6. The prefabricated box girder web reinforcement spacing limit frame according to claim 5, characterized in that: The eccentric wheel (403) is fixedly connected to a shaft (402) at its axis, the shaft (402) is rotatably connected to the base plate (401), a pulley (405) is fixedly connected to the shaft (402), the two pulleys (405) cooperate with each other and are transmission-connected to a belt (406), and the shaft (402) is fixedly connected to an output shaft of a motor.

7. The prefabricated box girder web reinforcement spacing limit frame according to claim 1, characterized in that: The feeding assembly (5) comprises a limit plate (501), a slide rod (502) and a slide table (503), wherein the limit plate (501) is fixedly connected to the bottom plate (401), slide cylinders are slidably connected on both sides of the slide rod (502), and the slide cylinders are slidably connected to the limit plate (501), and the slide table (503) is slidably connected to the slide rod (502).

8. The prefabricated box girder web reinforcement spacing limit frame according to claim 7, characterized in that: The slide (503) is threadedly connected to the screw rod (504), one end of the screw rod (504) is rotationally connected to the slide rod (502), the other end of the screw rod (504) is fixedly connected to the output shaft of the motor (505), and the motor (505) is fixedly connected to the slide rod (502).

9. The prefabricated box girder web reinforcement spacing limit frame according to claim 8, characterized in that: A connecting rod (506) is rotatably connected to the slide (503), a plurality of snap rings (507) are fixedly connected to the connecting rod (506), a gear (508) is fixedly connected to the connecting rod (506), and the rack (509) is slidably connected to the slide rod (502).

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